Improvement in combined band-punches and screw-drivers



4 Eva.

GEORGE W. SQ'JHOFIELD.4

,Improvement in Combined Band P unch and Screw Drivers.

Ne.l122,286. Patented Dee. 26,1Aa71.

UNITED runen GEORGE W. SGHOFIELD, OF THE UNITED STATESARMY.

` Specification forming part of Letters Patent No. 122,286, dated December 26, 1871.

Figure 1 is a view of one side of the driver asarranged to use one end ofthe reversible blade. Fig. 2 is a view of the other side arranged to use the other end of the reversible blade. Fig. 3 is a View of the other side. Fig. 4 is a view of the 4edge of the same, and shows the band-spring and tumbler-punches turned out in the position for using. Fig. 5 is a side view, showing the two blades open.

My invention relates to a screw-driver for lirearms; and consists of a handle having a blade which has a longitudinal slot therein, and its end formed asa single or two-pointed driver, or notched as for a main-spring clamp. A second blade, sharpened at each end and having a rivet firmly secured thereto, is secured to the main blade by means of the rivet, which is free toslide in said slot in a longitudinal direction, and a recess is cut in the handle, by means of which either end of the reversible blade is presented ready for use, and is so secured while in use by the reverse end being held in said recess. In that portion of the slot which passes through the handle a piece is pivoted, one end of which is a pin with a shoulder, so arranged that When turned out perpendicular to the axis of the slot,

it can be used as a band-spring punch, or as aV tumbler-punch,77 or as both of these; and when so turned out the slotted end ofthe handle may be used as a main-spring clamp,7 or as a nutwrench.77

That others skilled in the art may be able to make and use my invention, I will proceed to describe the same.

In the drawing, Arepresents the handle, having thereon the blade B, through both of which runs the slot Z1, in which is pivoted the punchc c. vA second blade has a rivet, a, secured firmly therein, and which passes through the slot b in the main blade, and is prevented from falling outor becoming detached by the large head upon each end, and this rivet is of a proper size to allow it to move freely-in said slot. The secondary or reversible blade D has one end, d, made sharp and of a width proper for turning an ordinary screw, and the other end, t', is made tapering and either squareor cylindrical, with its extreme end 'properly sharpened for turning smaller screws.

The square or cylindrical part is for separating parts which screw together and are provided with holes through which it may be passed, and then used as a lever or crank. The handle A has a recess, shown by the dotted lines i i', made therein by grooving the slot b, and of such shape and width that its widest part may receive and firmly hold the `wide end of the reversible blade d and its narrowest part the narrow endt' of said blade. The punch cc, Figs. l and 4, has a thickness equal to the width of the slot which passes through the handle for its body, while the end which projects when .turned out for use, as in Fig. et, has asquare or octagonal part nearest the handle, and terminates in a cylindrical pin; these two parts form the two punches. The punch is secured in its position in the handle slot bya rivet, 0,011 which it pivots, and which rivet serves at the same time to prevent the sides of the handle from springing apart. When the punch is turned out for use the cavity h, Fig. 5, left open in the end of the handle, may be used as a main-springclamp or as a nut-wrench. The dotted lines m m, Figs. l and 5, serve to show a form in which the end ofthe main blade B may be made so as -to be used as a main-spring clamp, nut-wrench, or two-pointed screw-driver.

The o pcraton of my device is as follows: If i an ordinary-sized screw is to be turned the blade is arranged with the small end t' resting in the recess i t, as shown in Figs. l and 3; or if the main blade B is formed at its end as a plain point for driving ordinary screws, that may be used for the larger class of screws by fixing the blade D, as in Fig. 5 5 but it' it is desired to manipulate a small screw, the blade D is .forced along` the bla-de B until the end t' is entirely withdrawn `from the recess i i', and the blade D is then turned on its pivot a, and forced back along the blade B until the wide end d enters the wider part ofthe recessif i. The small ende' may then be used to turn the screw. The end of the main blade B, when formed with a recess or cavity as shown by the dotted lines m m, may be used as a main-spring vise or clamp to manipulate main springs in taking them out or putting them in, or for a driver with two prongs; or for a. nut- Wrench; or for such other like purposes as may desirable andwhen in use for y:any such purposes the instrument is arranged as shown in Fig. 5.

This instrument forms a very useful tooi to alccompany a-ny of the firearms now made and used, and is particularly adapted to use in all ceses Where it is desirable to disconnect the several part-s of a fire-arm or to assemble them.

Having thus described my invention, Whatlclam as new, and desire to secure by Letters The combina-tion of thehandleAandthe blade B thereon, both slotted, the recess i i', theblade D, and pivot a, with the double punch o c, all substantially as and for the purpose described.

GEORGE W. SCHOFIELD.

' Witnesses:

L. H. ORLEMAN,

Lieut. 10th U. S. Cavalry. P. LUDWELL LEE,

Captain 10th Cavalry. (55) Patent, is- 

